I am going to send a factory HK94 in for a MP5F conversion. Picked up a factory mp5 kit and it happened to be a MP5F. Sooo.........I have two 94's one with an ID date code in 98% condition and a "doj" with a KB date code in 98% (I hand picked it and it is original and not refinished). I am trying to make up my mind on which one to convert and will probably end up selling the other. I was leaning toward converting the KB since the date code is closer to when the F series were released and figured the ID would command a higher price for resale...... but now I am thinking of converting the ID due to the fact that I am going to keep it and dont have plans of ever selling the mp5f conversion. Stupid dilemma but figured a few of you out there can relate. Not interested with using the kit on clone receiver. Thanks.